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2 Idaho Site Cleanup History Originally established in 1949 as a national reactor testing base; 52 "first-of-a-kind“ reactors have been constructed at the site. Has an extensive history of supporting the U.S. Department of Energy's nuclear, energy research, science, and national defense missions including:  Spent nuclear fuel reprocessing (removing reusable uranium from used nuclear fuel)  Radioactive waste storage and disposal  Used nuclear fuel storage In 1989 the Idaho Site was added to the National Priorities List by the Environmental Protection Agency. As a result the U.S. Department of Energy entered in to a number of regulatory cleanup agreements. Inside look of a underground liquid waste tank Sketch of underground tanks

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3 The Cleanup Mission The cleanup work is essential to the health and economic vitality of our local communities and in protection of the environment and the Snake River Plain Aquifer. It is the mission of the Idaho Cleanup Project to accelerate cleanup of past contamination and manage waste that is left over from Cold War and research activities. We continue to maintain excellent rapport with our Regulators through successful completion of regulatory milestones. We maintain excellent communication with affected tribes and local stakeholders. We focus on results with a priority on safety and a value to the taxpayer. Accelerated Retrieval Project Exhumation Facility construction Buried waste is dug up from the Subsurface Disposal Area (2009 )

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6 What We’ve Accomplished Buried Waste Retrieval- Exhumed 2.99 acres of the required 5.69 acres– including the completion of the infamous Pit 9. Transuranic (TRU) Waste Disposition- Idaho is the single largest shipper of TRU waste in the DOE complex. We have shipped 5,087 of the total 10,284 shipments received by the Waste Isolation Pilot Plant (January 2012)

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11 What We Have Left to Do Continue shipping transuranic waste to WIPP. Continue to receive domestic and foreign research reactor spent nuclear fuel for placement in to dry storage. Remove all spent fuel by Continue to support the Calcine Disposition Project to meet the “road-ready by 2035” Settlement Agreement milestone. Complete removal of targeted buried waste. Complete processing of 900,000 gallons of waste in underground tanks.

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12 uction Footprint Reduction The 2015 investment strategy for Idaho would result in a cumulative footprint reduction of 713 acres – a 92 percent reduction in EM liabilities.